

In Java Edition there is a bug mechanic called Quasi Connectivity, which allows you to power some redstone components from 2 blocks above, which normally wouldn’t work. This is because they just reused the door code for blocks that aren’t 2 blocks tall.
Here is a great explanation of it: https://www.youtube.com/watch?v=OJICW6BTJ74
I see it so often with so many different words, I kinda got used to it.